问题
Please, any ideas on how to extract image from pdf in php?
回答1:
Take a look at pdfimages. Here is the description from the page:
Pdfimages saves images from a Portable Document Format (PDF) file as Portable Pixmap (PPM), Portable Bitmap (PBM), or JPEG files.
Pdfimages reads the PDF file, scans one or more pages, PDF-file, and writes one PPM, PBM, or JPEG file for each image, image-root-nnn.xxx, where nnn is the image number and xxx is the image type (.ppm, .pbm, .jpg).
NB: pdfimages extracts the raw image data from the PDF file, without performing any additional transforms. Any rotation, clipping, color inversion, etc. done by the PDF content stream is ignored.
回答2:
I believe you can use imagemagic as well. You can send it command line arguments and snap a picture given the coordinates you can provide. You will need to install some rpms etc.
回答3:
Check out PDFLib. Their TET product does just that. You can get the images and text out... Only thing it doesn't cover is vector images.
回答4:
If you have an existing PDF File I guess it's pretty impossible to extract an image from there using PHP, maybe you'll have better luck with C: you need to disassemble the binary file, decode/decompress/decompile it and find where the image is stored, then copy it.
It's easier if you just copy'n'paste it.
来源：https://stackoverflow.com/questions/1606175/how-do-i-extract-image-from-a-pdf-file-using-php